The goal is to design a system that sounds great, without adversely affecting performance. Refunds for returned products are issued with 3-5 business days once they are received by our warehouse and inspected. Refunds will be issued via the same payment method originally used to place the order (Credit Card, PayPal, Google, Affirm, Check). All returns, where JM Auto Racing is not at fault, will have 15% restocking fee less than cost of freight.
Catalytic convertors are also necessary due to internal combustion engines’ ridiculously low efficiency. All of the hydrogen and carbon in gasoline would entirely burn out and transform into carbon dioxide and water in an ideal, frictionless engine. Since this is not the case, cats are the only way to go when designing exhaust systems.
In turn, this impact will reduce backpressure and decrease turbine speed within the turbocharger, impairing overall power output. While some jurisdictions that don’t monitor for emissions make it easier to get away with test pipes, others have rigorous laws and severe penalties. The exhaust gases travel through a ceramic honeycomb structure inside the catalytic converter that is made up of thousands of tiny ducts.
Keep in mind that engines are spinning at thousands of RPMs. Exhaust gases are being produced at the same rate, and for this, engines need a good exhaust route as much as they need fuel and air. Talk to any engineer and he or she will tell you that getting air in and out of an engine is always a big problem.
Enhance your vehicle's performance with our expertly designed kit, crafted to deliver noticeable power gains and a refined driving experience. Whether you're looking to improve track times or simply upgrade your daily driver, this kit provides the quality and precision engineering you need to maximize your vehicle's potential. Trust RNJ Performance to provide the components that deliver both reliability and high performance, taking your vehicle to the next level. Both Test Pipes and Downpipes, like the FLASHARK G37 Test Pipes and 370Z Downpipe, are designed to increase horsepower. By improving exhaust flow and reducing restrictions, they can add 10 to 20 horsepower on average, with noticeable gains during high-performance driving. Even though they’re called g37 test pipes pipes, that isn’t what they do in a substantial way.